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(11) | EP 1 387 577 A3 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | Deinterlacing apparatus and method |
| (57) A deinterlacing apparatus and method use a buffer unit having a previous field buffer,
a current field buffer, and a next field buffer to store, sequentially, individual
fields of an image signal; calculate a Sum of Absolute Difference (SAD) value of a
predetermined search region unit with reference to a next field stored in the next
field buffer and a previous field stored in the previous field buffer; determine whether
the predetermined search region is a still region and whether a source of the image
signal is a film based on the SAD value; uses a 3D interpolation unit to output adaptively
a temporal interpolation value and a spatial interpolation value based on motion information;
and adaptively select a deinterlacing result based on the previous field, the next
field, and an output of the 3D interpolation unit according to a signal outputted
from the still region/film mode detection unit.
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